Motor road vehicle



A. A. H. TISSERANT.

MOTOR ROAD VEHICLE.

APPLICATION FILED MA R.4,1919.

1,3 10,972. Patented July 22, 1919.

3 SHEETSSHEET L INYENTDI? Hum/STE EH. Txsszmqn r A. A. H. TISSERANT.

MOTOR ROAD VEHICLE.

U APPLICATION FILED MAR. 4.1919- I 119,972.. Patented J nly 22, 1919.

l 3 SHEETS-SHEET 2. e -5 e A. A. H- TI SSERANT. MOTOR ROAD VEHICLE. APPLICATION FILED MAR. 4. 1919 Patented J 11y 22, 1919.

3SH EETSSHEET s.

' carrying wheels 7;,

a, n rich.

Moron, ROAD-VEHICLE.

Specification of Letters Patent.

Application filed March 4, 1919. Serial No. 280,552.

To all whom it may concern: Be it known that I, AUeUsrE- ALBERT Hoxonii TISSE'RANT, a citizen of the Republic of France, and a resident of Villa Thlia, Avenue des oteaux, St.. Cloud, Seine et adapted to slide elastically in the verticaldirection and to be turned in any desired direction by rotation on its vertical axis, this hollow piece being within another hollow piece constituted by an ext nsion of the front part of the chassis. On this latter hollow piece the motor and the speed gear box are removably mounted so as to be symmetrically placed with reference to the said axis, the front wheel being 't-luplicated in such manner as to allow of the reducing shaft, driving the axle of the wheel, to pass be tween the two parts of the wheel and along the axis of the steering pivot.

The accompanying drawings show by way of example a construction in accordance with the invention.

Figure lie at side elevation of the motorcan.

Fig. 2 is a plan.

Fig. 3 is a front elevatioi'i.

Fig, 4 is a vertical longitudinal section drawn to an enlarged scale on line -l-4 of Fig. 3.

Fig. 5 is a vertical section in a plane at right angles to that of Fig. 4, that is to say on the line of Fig. l.

'lhe motorcar comprises a double front driving and steering wheel rt (1. and two rear These three wheels are connected with the chassis (I by means of springs The front part of the chassis is coustitut llthy a hollow piece (preferably of steel. in ,ivliich can slide and turn a piece of tubular form f which is the steering pivot and is assembled with and fixed to the fork f/ of the front wheel a at The hollow piece (2 has two large annular flanges c, c, diametrically opposite to each other and in planes at rightangles to the longitudinal axis of the chassis. On one of these flanges is mounted a casing 72. carrying the motor and inclosing the crank shaft h. 011 the other p flange is mounted a speed gear box 27. This arrangement permits easy and rapid dismounting and also complete removal and exchange of the motor and of the speed gear box.

The motor has two opposite horizontal cylinders I). k with fins for air-cooling. The motor shaft k drives through a clutch k a transmission shaft i carrying gear wheels i adapted to be engaged with one 01-. another of the gear wheels j mounted on a counter transmission shaft y' The steering pivot f has elongated openings 7' of oval form through which extend the transmission shafts 1: and j of the speed gear box 21. These openings f allowthe steering pivot f to take, in relation to the'piece e fixed to the chassis d, the maxima angular positions necessary for steering the vehicle without touching the shafts 2, j.

The shaft j carries at its end a bevel gear wheel 7' engaged with a like wheel j mounted free, coaxially with the vertical axis of the steering pivot on an extension of the speed gear box i. hrough the nave j of this wheel 7' extends a shaft is coaxial with the vertical axis of the pivot f and grooved to receive keys in the nave j, so

that the shaft may be driven by the trans-.

mission shaft j notwithstanding that the shaft K" may move vertically at the same time to irregularities in the ground on which the front wheel is running. A helical spring f forms an elastic connection between the front wheel and the chassis.

The shaft Itdrives through a second bevel reducing gear 70 k to the axle Z ofvthe front wheel mounted in the two arms of the fork g. The shaft It extends througha vertical tubular extension m of the casing m inc-losing the reducing gear M, c of the axle Z and adapted to turn on this latter.

It will be seen that the driving and steering wheel is controlled without the intermediary of any universal joint.

The upper end of the tubular extension at is assembled with-the upper part 'of-the steering pivot." It follows that the whole of the casing m and its tubular extension at receires the reactions of the reducing gear 76 k and transmits them directly to the tubular steering pivot f without passing through the two arms of the fork.

The, front Wheel is duplicated,'the-casing Patented July 22, 1919..

(if; i

a. a, may be broughtelose to one another notwithstanding that the casing in is accommodated between them, so that the bulk of the wheel is reduced. It suffices to leave between the tWo parts a a of the wheel a space suflicient to allow the passage, With a rear carryingwheels wherein the fork of certain degree of lay, of the vertical tube m along the vertlcal axis about which the steering fork turns. The double front Wheel imparts stabilityto thewehicle on account of the lengthening toward the front of the supporting triangle M -g2, Iflig.

at the same time it secures a better distribution of the adhesive force of the motor.

The two arms of the fork fare preferably jointed at near the head of the fork so as to allowthe fork to be opened laterally to facilitate mounting and dismomiting the two parts a- (L of the front wheel.

The vehicle is steered in the following manner: H

The head of the fork g carries an arm ending in a ball g (Fig. 4-), and this arm is connected by a connecting rod with a-steerlng mechanism fixed to the chassis and controlled by a steering; wheel Fig. "1. This steering mechanism may be placed either to the right or to the left of the longitudinal axis of the vehicle accordinglvas it-is desired thatthe driver shall sit on the right hand or on the left hand. I

The vehicle preferably has two brakes acting on the rear wheels respectively. One

of these brakes is controlled by a pedal placed under the right foot of the driver and the other is operated by a han dleveni placed either to the right hand or to the left hand of the driver according to his position. The clutch is eontrolledby a pedal under the left foot of the driver. The change of speed is controlled by a lever i operating on a toothed sector fixed. to the post of the scending fmm his seat, this being rendered .posslble by the position of the motor.

@- Having now particularly, described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

l. A motor road vehicle, comprising a front driving and steering wheel and two the front wheel is fixed to a hollow piece formin a steerin )ivotand adaitedto slide elastically in a vertical direction and to be turned in any desired direction on its vertical axis, this hollow piece being contained within a second hollow piece constituted by an extension of the front part of "the ('l1t\SH1S,'fll8 motor and the speed gear box being mounted on this sccond hollow piccc symmetrically with reference to the said 'cr tical. axis. and wherein the front wheel is a double wheel so constructed that between its two parts there can pass coaxially with the stccrilng pivot a reducing shaft driving the axle of the doublewhccl without the invention of any umvetsal joint.

The construction of the driving wheel referred to in claim 1, in which the speed gear box and the motor are assembled on the l1ollow piece which incloses the stccrin; pivot by meansof flanges which permit easy and rapid dismounting of the box and motor and so that these parts can be completely rcmovcd and exchanged.

3. The construction ofthe driving wheel referred to in claim 1, wherein the motor comprises two opposite horizontal cylinders cooled by air.

In tes imony whereof. have signed my name to this specification.

AUGUSTE ALBERT HONURE 'llSSEltAN".

\Vitnesses;

John F. Simone, W. Darlivnmomf. 

